Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7356373 | Method and device for enhancing ring tones in mobile terminals | — | 2008-04-08 |
| 6138091 | Method and arrangement for simultaneous recording of incoming and outgoing voice signals with compression of silence periods | Tero Haataja | 2000-10-24 |